Magnetic steel assembling tool
Patent Information
- Application Number
- CN202521908774.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-09-04
AI Technical Summary
[0003]本实用新型要解决的技术问题是:为了解决上述背景技术中存在的问题,提供一种改进的磁钢装配工装,解决目前在装配磁钢时,直接抓握磁钢装入冲片磁钢槽内会因为磁力太大,抓握不住,极端情况下会直接伤人或者发生磁钢撞损,同时因为定位要求高,导致装配效率低下的问题
[0011] (1) The magnetic steel assembly tool of this utility model consists of a tool body, a positioning guide bar that is spot-welded and fixed inside the side guide groove, and a handle that is threaded and fixed. The whole device is compact, easy to grip and use, and easy to produce and process, and has low cost.
Smart Images

Figure CN224733594U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical assembly technology, and in particular to a magnetic steel assembly fixture. Background Technology
[0002] Permanent magnet motors and permanent magnet coupling drive products use a large number of magnets, with neodymium iron boron magnets currently being the most widely used. These magnets have very high remanence and magnetic attraction. When manually assembling magnets, directly grasping them and inserting them into the slots of the laminations can be difficult due to the strong magnetic force, potentially causing injury or damage to the magnets in extreme cases. Furthermore, the high precision required for positioning leads to low assembly efficiency. Utility Model Content
[0003] The technical problem to be solved by this utility model is: in order to solve the problems existing in the background art, an improved magnetic steel assembly tool is provided to solve the problem that when assembling magnetic steel, directly grasping the magnetic steel and inserting it into the slot of the stamped magnetic steel will result in the inability to grasp it due to the large magnetic force, which may directly injure people or damage the magnetic steel in extreme cases. At the same time, the high positioning requirements lead to low assembly efficiency.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a magnetic steel assembly fixture, including a fixture body, a drive motor and a lithium battery. The fixture body has an internal assembly groove with openings on both sides. The inner walls of the internal assembly groove are symmetrically provided with side guide grooves with internal positioning guides. The upper surface of the fixture body has an upper transition opening at the middle position. The lower surface of the fixture body has a bottom internal threaded through hole that communicates with the internal assembly groove. The lower end of the fixture body is fixed with a handle for easy gripping by inserting it through the bottom internal threaded through hole. The positioning guide is located inside the side guide groove and is spot welded to the inner wall of the side guide groove. The other end of the positioning guide protrudes out of the side guide groove opening.
[0005] The handle is coaxially fixed with an external threaded assembly rod at its upper end. The handle is screwed into the bottom internal threaded through hole through the external threaded assembly rod and fixedly connected to the lower surface of the tooling body.
[0006] The upper transition port has arc-shaped chamfers at both ends of the opening.
[0007] The handle has an internal functional chamber for installing the drive motor and lithium battery. The external threaded mounting rod has an internal transmission hole for installing an internal hexagonal drive shaft tube. A push-button control switch for controlling the drive motor is installed on the outer wall of the handle.
[0008] The inner bottom surface of the internal assembly groove is provided with an internal drive groove in which a first bottom drive roller and a second bottom drive roller are internally arranged. A transmission connection through hole connected to the internal drive hole is provided at the middle position of the inner bottom surface of the internal drive groove. The transmission connection through hole is movably assembled with a main elastic telescopic drive shaft for driving the hexagonal drive shaft tube, the first bottom drive roller and the second bottom drive roller. The assembly ends of the first bottom drive roller and the main elastic telescopic drive shaft and the assembly ends of the second bottom drive roller and the main elastic telescopic drive shaft are both connected by tapered teeth.
[0009] The main elastic telescopic drive shaft includes a longitudinal drive shaft movably mounted between the first bottom drive roller and the second bottom drive roller, a longitudinal telescopic sleeve movably sleeved at the lower end of the longitudinal drive shaft, and an internal compression spring installed inside the longitudinal telescopic sleeve.
[0010] The beneficial effects of this utility model are:
[0011] (1) The magnetic steel assembly tool of this utility model consists of a tool body, a positioning guide bar that is spot-welded and fixed inside the side guide groove, and a handle that is threaded and fixed. The whole device is compact, easy to grip and use, and easy to produce and process, and has low cost.
[0012] (2) The protruding positioning guide can quickly and accurately align the tooling with the stamping magnet slot, which is convenient for assembly and accurate in positioning.
[0013] (3) The entire operation does not require manual holding of the magnet to contact or approach ferromagnetic materials. You only need to manually push the magnet from the non-magnetic tooling internal assembly slot into the magnet slot of the punch. The entire assembly process is free from magnetic interference, greatly improving assembly efficiency and safety. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a side sectional view of the present invention. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] Figure 1 and Figure 2 The illustrated magnet assembly fixture includes a fixture body 1, a drive motor 11, and a lithium battery 111. The fixture body 1 has an internal assembly groove 2 with openings on both sides. The shape and size of the assembly groove 2 are adapted to the magnet to be assembled. Symmetrical side guide grooves 4 with internal positioning guide strips 3 are opened on the inner walls of both sides of the internal assembly groove 2. The shape and size of the guide grooves and positioning guide strips are adapted to the non-magnetic installation part of the stamped magnet groove. An upper transition opening 5 is opened at the middle of the upper surface of the fixture body 1. A bottom internal threaded through hole 6 communicating with the inner wall of the internal assembly groove 2 is opened on the lower surface of the fixture body 1. A handle 7 for easy gripping is inserted and fixed to the lower end of the fixture body 1 through the bottom internal threaded through hole 6. The positioning guide strip 3 is located inside the side guide groove 4 and is spot welded to the inner wall of the side guide groove 4. The other end of the positioning guide strip 3 protrudes out of the outer side of the opening of the side guide groove 4.
[0020] The upper end of the handle 7 is coaxially fixed with an external threaded assembly rod 8. The handle 7 is screwed into the bottom internal threaded through hole 6 through the external threaded assembly rod 8 and fixedly connected to the lower surface of the tooling body 1.
[0021] The main body of the aforementioned tooling 1 is made of non-magnetic metal materials, such as 304 stainless steel, 201 stainless steel, and aluminum alloy.
[0022] The aforementioned tooling body 1 and positioning guide strip 3 are a single piece of material before processing. After a single wire cutting process, the tooling body and positioning guide strip are obtained simultaneously, making the processing and manufacturing very convenient and efficient.
[0023] The aforementioned tooling body 1, after being formed by wire cutting, forms an internal assembly groove 2 in the middle and side guide grooves 4 on both sides. The size of the internal assembly groove 2 is basically the same as the size of the magnet. When finally used, the magnet is pushed into the magnet groove of the punch through this internal assembly groove 2.
[0024] The aforementioned positioning guide strip 3 is installed in the side guide grooves 4 on both sides of the tooling body 1, with only a tiny gap between them. The size of this gap is basically equal to the specification of the wire-cut molybdenum wire (common specification 0.12~0.2mm).
[0025] The aforementioned positioning guide 3 extends a short length out of the side guide groove 4 of the tooling body 1. This protruding part is consistent with the outline of the non-magnetic steel installation part of the stamping magnet groove. When finally used, it plays a positioning role, so that the tooling body 1 is aligned with the stamping magnet groove.
[0026] The non-protruding end of the tooling body 1 of the above-mentioned positioning guide bar 3 is fixed by spot welding at the tail end, and the weld point is located in the side guide groove 4, which does not affect the passage of the magnet.
[0027] The aforementioned fixture body 1 and positioning guide 3 are made of the same non-magnetic metal material. Therefore, when the magnet is installed into the assembly slot 2 inside the fixture, there will be no magnetic force, and a person can easily operate the magnetic block by hand.
[0028] The handle 7 mentioned above is designed to make it easier for workers to grip and use the tooling.
[0029] Furthermore, to enhance safety during manual control, the upper transition port 5 has rounded chamfers at both ends of the opening.
[0030] Furthermore, for ease of control, the handle 7 has an internal functional chamber for installing the drive motor 11 and the lithium battery 111, the external threaded mounting rod 8 has an internal transmission hole for installing the internal hexagonal drive shaft tube 9, and a push-button control switch 10 for controlling the drive motor 11 is installed on the outer wall of the handle 7.
[0031] Furthermore, in order to cooperate with the internal drive, an internal drive groove is provided on the bottom surface of the internal assembly groove 2, in which the first bottom drive roller 12 and the second bottom drive roller 13 are internally arranged. A transmission connection through hole is provided in the middle of the bottom surface of the internal drive groove, which is connected to the internal transmission hole. The transmission connection through hole is movably assembled with the main elastic telescopic transmission shaft tube 9 for driving the hexagonal transmission shaft tube 9, the first bottom drive roller 12 and the second bottom drive roller 13. The assembly ends of the first bottom drive roller 12 and the main elastic telescopic transmission shaft and the assembly ends of the second bottom drive roller 13 and the main elastic telescopic transmission shaft are both connected by tapered teeth.
[0032] The first bottom transmission roller 12 and the second bottom transmission roller 13 are driven by the drive motor 11 to rotate, thereby moving the magnet horizontally inside the internal assembly groove 2. This eliminates the need for manual squeezing of the magnet, resulting in superior safety.
[0033] Furthermore, in order to facilitate assembly, the main elastic telescopic drive shaft includes a longitudinal drive shaft 14 movably mounted between the first bottom drive roller 12 and the second bottom drive roller 13, a longitudinal telescopic sleeve 15 movably sleeved on the lower end of the longitudinal drive shaft 14, and an internal compression spring 16 installed inside the longitudinal telescopic sleeve 15.
[0034] This utility model discloses a magnet assembly fixture consisting of a fixture body 1, a positioning guide 3 spot-welded inside a side guide groove 4, and a threaded handle 7. The entire device is compact, easy to grip and use, convenient for production and processing, and low in cost. The protruding positioning guide 3 allows the fixture body 1 to be quickly and accurately aligned with the slot of the stamped magnet, facilitating assembly and ensuring precise positioning. The entire operation does not require manual holding of the magnet to contact or approach ferromagnetic materials; the magnet can simply be manually pushed from the non-magnetic assembly groove 2 inside the fixture into the slot of the stamped magnet. The entire assembly process is free from magnetic interference, greatly improving assembly efficiency and safety.
[0035] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A magnetic steel assembly fixture, comprising a fixture body (1), a drive motor (11), and a lithium battery (111), characterized in that: The tooling body (1) has an internal assembly groove (2) with openings on both sides. The inner walls of the internal assembly groove (2) are symmetrically provided with side guide grooves (4) with internal positioning guides (3). The upper transition port (5) is provided in the middle of the upper surface of the tooling body (1). The lower surface of the tooling body (1) has a bottom internal threaded through hole (6) that communicates with the internal assembly groove (2). The lower end of the tooling body (1) is connected to a handle (7) for easy gripping through the bottom internal threaded through hole (6). The positioning guide (3) is located inside the side guide groove (4) and is spot welded to the inner wall of the side guide groove (4). The other end of the positioning guide (3) protrudes out of the opening of the side guide groove (4).
2. The magnetic steel assembly fixture according to claim 1, characterized in that: The handle (7) is coaxially fixed with an external threaded assembly rod (8) at its upper end. The handle (7) is screwed into the bottom internal threaded through hole (6) through the external threaded assembly rod (8) and fixedly connected to the lower surface of the tooling body (1).
3. The magnetic steel assembly fixture according to claim 1, characterized in that: The upper transition port (5) has arc-shaped chamfers at both ends of the opening.
4. The magnetic steel assembly fixture according to claim 2, characterized in that: The handle (7) has an internal functional chamber for installing the drive motor (11) and the lithium battery (111). The external threaded mounting rod (8) has an internal transmission hole for installing the internal hexagonal drive shaft tube (9). The outer wall of the handle (7) has a push-type control switch (10) for controlling the drive motor (11).
5. The magnetic steel assembly fixture according to claim 4, characterized in that: The inner bottom surface of the inner assembly groove (2) is provided with an inner drive groove in which a first bottom drive roller (12) and a second bottom drive roller (13) are internally arranged. The inner bottom surface of the inner drive groove is provided with a transmission connection through hole that communicates with the inner drive hole. The transmission connection through hole is movably assembled with the main elastic telescopic drive shaft for driving the hexagonal drive shaft tube (9) and the first bottom drive roller (12) and the second bottom drive roller (13). The assembly ends of the first bottom drive roller (12) and the main elastic telescopic drive shaft and the assembly ends of the second bottom drive roller (13) and the main elastic telescopic drive shaft are both tapered tooth meshing transmissions.
6. The magnetic steel assembly fixture according to claim 5, characterized in that: The main elastic telescopic drive shaft includes a longitudinal drive shaft (14) movably mounted between the first bottom drive roller (12) and the second bottom drive roller (13), a longitudinal telescopic sleeve (15) movably sleeved on the lower end of the longitudinal drive shaft (14), and an internal compression spring (16) installed inside the longitudinal telescopic sleeve (15).